Slag-remover



J. H. ABEL. SLAG Rimowa.

` APPLICATION' FILEU MAY 4, i918:4 I 1.33.225. Patent@ May 13,1919.

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/Z 2.3 Z2 Xg JNVENTOR- WITNESSES ATTOR NEY 2 SHEET I. H. ABEL.

SLAG Rl-NIOVER.-

APPLICATION FILED MAY 4. me. 1303,@25.

INvENToR Il" u l b# www Jim1@ wir WITNESSES JOHN H. ABEL, or MoNEssEN, PENNSYLVANIA.

SLAG-REMOVER.

Specification of Letters Patent.

i Patented May 13, 1919.

Application led May 4, 1918. Serial N o. 232,530.

To all 'whom it 'may concern Be it known that I, Jol-IN H. ABEL, a citizen of the United States, resid-ing at. Monessen, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Slag-Removers, pf which the following is a specification.

This invention relates to furnaces, and more especially to the linings thereof; and the object of the same is vto produce means within a slag pocket whereby the walls of the same are protected from intense heat and the slag accumulating at the bottom of the pocket may be conveniently removed.

To this end the invention consists in a movable bottom whose side sections may be dropped to a lower level than its intermediate section so that the latter may be withdrawn.

Further details will be found in the fol? A lowing specification and claims, 'and reference is made to the drawings,wherein:-

Figure 1 is a front 4elevation of two pockets, the bottom at the left therein being raised land at the rightA in this view being lowered. f

Fig. 2 is a vertical section through the` pocket at the left of Fig. A1 and Fig. 3 a similar section through the pocket lat the right of Fig. 1.

Fig. 4 is a sectional detail on the line of'Fig. 2.

The furnaces may be of any appropriate size and configuration, but as .illustrated their slagl pockets l and 2 are formed with Walls of masonry or brick work, arched at the top, provided nwith rear bridge walls 3 about as shown, and having their bottoms made up as descrioedv hereinafter. ,The nu- 'merals 4, 5, and 6 designate pillars which may also `be of masonry asindicated, and their disposition about that shown 1n the drawings. In the bridge'wall 3 at its transverse center is left a recess indicated at 7. The side walls of each pocket are undercut to flare downward as shown, and to these walls may be attached facing plates 8 of metal, possibly protected by a coat-ing of loam. In fact, these plates may extend around the rear end of the pocket as seen at 8 but we are concerned principally with thesidejwalls. The latter therefore .diverge downwardso that the lower portieri of the pocket is wider than the upper part.

The bottom of each pocket is constructed y as follows The pillars l carry a pillar block 10 `1n which moves a fulcrum bar l1 which thereof excepting wherethey are spaced be` tween their inner edges. rl`he'forward ends of the-I-beams overlie a cross bar l5 adapted when raised by power attached to chains 1G (which power mechanism need not be shown) to lift said forward ends of the beams so that their bodies will stand practically horizontal as seen in Fig. At other times the cross bar may rest on the forward pillars 6 as shown in Fig. 3 and at this time the beams and their plates will be inclined slightly forward. -Erected upon said platesare side walls 17 which are preferably made of brick, the outer faces of these walls being 4 inclined` upward and inward as indicated at 18 and their upper ends having tongues 19; and the inner ends of'these walls are connected by a cross wall 17 standing normally just forward of the bridge Vall The plates 13 and 14: are also paved with old brick as at 20. It will not be necessary to illustrate the fact, but `over this paving and against the inner faces of the walls may be applied a coating o f sand in case the heat within the furnace is expected to `be eX! cessive. So muchof the bottom as has thus far been described relates to the parts at the opposite sides thereof, which are side sections preferably'- complemental to each other, and they are. mounted'on a common pivot 10 and raised and lowered at their outer ends by a common cross bar 15.`

Between the sections of 'the bottom described above is disposed another I-heam Qi). whose inner. end is hooked or bent upward at right angles as at 21 and adapted to enter the recess 7 in the bridge wall. A plate :23 is secured upon this I-lieam and closes the space 'between the plates 13 and 1-l as seen"in Fig. 1. The forward end of this I-beam '22 may rest on the cross bar 15 when the lat:l ter is raised as seen in Fig. 2, but when this cross bar is lowered the intermediate Ifbeam is sustained by a series of rollers 25 mounted in bearings E2G carried b v supporting beams 28, which in turn are supportedl by pillars 4 and 5 in such position that they constitute, with theirfrollers, aninclined trackway. 29ii'ndicates a chain attached to the' I-beain 22 and leading to any suitable source of power by which to withdraw this beamand its plate 28 and the hook 21 from position. The parts being assembled and the brick work erected and the floor built in as shown in Fig. 1 (with or without the sand or other protective coating), the furnace is charged and the fire lighted. The intense heat generated therein would warp and otherwise destroy the facing plates 8`if it were not for their protective coating of loam 9 and particularly the protective walls 17. Eventually the pocket becomes to 'an extent lled with slag which it is desirable to remove. With the parts standing at normal, as seen at the left of Fig. 1 and in Fig. 2, the cross bar l5 isfirst lowered so thatthe parts assume the position shown at the right of Fig. 1 and in Fig. 3. This lets most of the bottom down I to an inclined position and tilts the walls 17 and the c'ross wall 17 forward; but the intermediate I-beam22 is now lsupported on therollers- 25 of the track and its plate 28 is automatically held a little higher than the platesjl and 14 as will be clear.- Tension applied vto the chain 29, or any' pull in the direction of the arrow adjacent it in Fig. 3 will now withdraw the hooked intermediate lsection whose upturned-enl or hook 21 is behind the cross wall 17. The' withdrawal of this section of course ruptures said vcross Wall as the hook moves forward out of the recess 7 and the slag in mass is drawn out of the pocket. Doubtless this will draw with it the side walls 17 and the Hooring, but the fixed walls of the furnace and the plates are unimpaired and the bridge wall 3 has been protected by; the cross wall 17 The entire mass of slag with the adhering brick work etc. having been withdrawn, the parts are @stored to their former position .and new flooring and walls built in. This I lind can be done while the furnace is yet in use and therefore the loss hitherto occasioned by permitting the furnace to become cooled is eliminated.

The foregoing description and the drawings have reference to what may be considered the preferred, or approved form of my invention. It is to be understood that I may make such changesin construction and arrangement and combination ofk parts, materials, dimensions, etcetera, as may prove expedient and fall within the scope ofthe appended/claims.

Having thus fully described my invention, whatsl claim as new and desire to secure by Letters Patent, is

1 In a. slag pocket of the type described, a slag remover comprising a`furnace bottom made in three sections` two of which are spaced to admit .the third, means for' tilting said three sections toward the front, and means for withdrawing the intermediate section longitudinally when desired.

. admit the third, means for raising and lowering the front ends of said two sections simultaneously, and means for withdrawing the intermediate section when desired.

3. 4In a slag pocket of the type described, a slag remover comprising a furnace bottom made in three sections, two of which are spaced to admit the third, a cross bar underlying the front ends of all said sections for raising and lowering them when desired, and a roller-carrying track underlying the intermediate section and with its rollers standing at a height to support this section when the other sections descend with said cross bar, for the purpose set forth.

4. In a slag pocket, the combination with the walls, and a. pillar block at the bottom near the rear of the pocket; of a fulcrum bar pivotally mounted in said block, a pair of beamssupported at their inner ends onsaid fulcrum bar, means for raising and lowering their .outer ends, an inclined track having fixed rollers mounted between said beams, and an intermediate beam between the others and adapted to rest on said rollers and to be longitudinally removable thereover, for the purpose set forth.

5. The herein described slag pocket bottom comprising two pair of parallel spaced beams, plates secured upon the members of the pairs and spaced from each other at their inner edges, .a pivotal support for the inner ends .of these beams, means for raising and lowering their outer ends simultaneously; an intermediate beam overlying said pivotal support and raising means and upturned at its inner end, a plate secured upon this beam and filling the space between said other plates, supports for the intermediate beam for sustaining it at a higher level than the lowest level to which the other beams are lowered, and walls erected upon the side plates.

6. The herein described slag pocket bottom comprising two pair of parallel spaced beams, plates secured upon the members of the pairs and spaced from each other at their inner edges, a pivotal support for the inner ends of these beams, means for raising and lowering their outer ends simultaneously, an intermediate beam overlying said pivotal support and raising means and upturned at its inner end, a plate secured upon this beam and filling the space between said other plates,v supports for the intermediate beam for sustaining it at a higher level than the lowest level to which the other beams are lowered, side walls erected upon the Side plates, a cross wall connecting the inner ends of saidside Wallsforward of'said upturned end, andA means for withdrawing the intermediate beam longitudinally when the other beams are dropped.

7T. In a slag pocket, the combination with fixed side walls flaringdownward, land plates secured to the flaring portions` thereof; of removable bottom,walls erected thereon and with their outer faces converging upward to fit against said plates when the bottom is i in normal position, and means for withdrawing the intermediate portion.A of said bottom longitudinally.

8. In a slag pocket, the combination with fixed side walls Haring downward, and plates secured to the flaring portions thereof, the

A rear end of the pocket having a bridge wall with an upright recess; of a vertically movable bottom in three sections, walls erected on the side Sections" thereof with their outer faces converging upward to fit against said plates when these sections are in position, the intermediate section being movable'longitudinally between said side sections, and an upstanding hook at the inner end of said intermediate section entering said recess, the whole for use substantially as described.

In testimony whereof I aiix my signature in presence of two Witnesses.

JOHN H. ABEL.

' Witnesses:

CHAs. A. THOMPSON, MICHAEL J. STUPAN. 

